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Hitachi Weather by Month
Average temperatures, rainfall and humidity for Hitachi, Japan, month by month, built from OpenWeather’s historical records. Use it to see what a typical Hitachi month looks like before you travel — then check the live Hitachi forecast for the days ahead.
Warmest month
August
30°C average high
Coolest month
January
0°C average low
Wettest month
June
150 mm of rain
Driest month
January
42 mm of rain
Average temperature and rainfall in Hitachi by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 10°C | 0°C | -8°C / 19°C | 42 mm | 63% | 11 km/h |
| February | 10°C | 0°C | -8°C / 22°C | 75 mm | 63% | 12 km/h |
| March | 14°C | 4°C | -6°C / 24°C | 90 mm | 67% | 12 km/h |
| April | 18°C | 8°C | -3°C / 28°C | 127 mm | 70% | 12 km/h |
| May | 22°C | 13°C | 4°C / 33°C | 101 mm | 75% | 11 km/h |
| June | 25°C | 18°C | 10°C / 35°C | 150 mm | 82% | 10 km/h |
| July | 29°C | 22°C | 16°C / 35°C | 115 mm | 84% | 10 km/h |
| August | 30°C | 24°C | 14°C / 37°C | 123 mm | 82% | 11 km/h |
| September | 27°C | 20°C | 10°C / 37°C | 106 mm | 84% | 12 km/h |
| October | 21°C | 14°C | 2°C / 32°C | 128 mm | 78% | 12 km/h |
| November | 17°C | 8°C | -3°C / 25°C | 72 mm | 73% | 10 km/h |
| December | 12°C | 3°C | -8°C / 23°C | 59 mm | 66% | 10 km/h |
Best time to visit Hitachi
The most comfortable time to visit Hitachi is generally May to June and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around June, totalling about 1,188 mm a year.
Travellers who prefer heat should aim for August, when highs average 30°C. June is the month to avoid if rain would spoil your plans — it averages 150 mm, roughly 4× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Hitachi forecast for what is happening now.
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